/Engine/Source/Runtime/Engine/Classes/GameFramework/PlayerInput.h
https://docs.unrealengine.com/latest/INT/Gameplay/Input/index.html
struct FInputActionKeyMapping
FName
ActionName
Friendly name of action, e.g "jump"
uint8: 1
bAlt
True if one of the Alt keys must be down when the KeyEvent is received to be acknowledged
uint8: 1
bCmd
True if one of the Cmd keys must be down when the KeyEvent is received to be acknowledged
uint8: 1
bCtrl
True if one of the Ctrl keys must be down when the KeyEvent is received to be acknowledged
uint8: 1
bShift
True if one of the Shift keys must be down when the KeyEvent is received to be acknowledged
FKey
Key
Key to bind it to.